1)(1/3a-1/2b)(1/3a+1/2b); 2)(0.2a-0.5b)(0.2a+0.5b)

Question

1)(1/3a-1/2b)(1/3a+1/2b);
2)(0.2a-0.5b)(0.2a+0.5b)

Answer 1

1) = 1\9a^2 - 1\4b^2
2) 0,04а^2 - 0,25b^2